AMD's Display Core difficulties

It would at least be possible in terms of technology and skills, assuming that the per-company HAL that AMD built is sufficient in doing what it was intended to do. And if it isn't, off with its head already!

Given how the kernel interfaces are always changing, AMD could even have participated in, or even initiated, some kind of medium-term development series to make them suitable to whatever secret sauce AMD's silicon snowflake was deemed to require. But obviously not without "helping the competition", "diluting our proprietary advantage", "exposing clues of our trade secrets", or some other rephrasing of the well-worn corporate canard.

What was AMD going to do, anyway -- remove the HAL on its own? (what would happen if it nevertheless didn't?) Whine about time spent working on a known dead-end, and ask for special treatment?